Answer:
99.7% confidence interval is
Step-by-step explanation:
The formula for a confidence interval for a population proportion is where is the sample proportion, is the sample size, and is the critical score for the desired confidence level.
We are given a sample size of and a sample proportion of . Our critical score for a 99.7% confidence level would be
Therefore, the approximate 99.7% confidence interval for the population parameter is
So we are 99.7% confident that the true population proportion is contained within the interval